Nuzhat Noor, Sabika Firasat, Naheed Bano, Kiran Afshan, Bushra Gul, and Haiba Kaul, “Clinical profile and screening of exon 6 and 14 of ABCB4 gene in obstetric cholestasis patients at a tertiary care hospital in Rawalpindi, Pakistan”, J Pak Med Assoc, vol. 71, no. 6, pp. 1633–1638, Dec. 2021.